In daily life, non-woven fabrics are not only used to make clothing linings and packaging materials. In many cases, non-woven fabrics are often used to process medical and sanitary materials. Nowadays, non-woven fabrics are used as sterilization packaging materials in medical The industry has been more and more widely used.
Since it is used in the production and processing of medical and sanitary materials, it must have high quality requirements. In addition, the factors that need to be considered and understood when choosing medical non-woven fabrics cannot be ignored.
1. The effective microbial barrier of medical non-woven fabrics provides long-term sterile effectiveness
China usually uses droplets of Staphylococcus aureus for wetness testing, and quartz powder mixed with spores of S. aureus for dryness testing.
Other national testing institutions, such as Nelson Laboratory in the United States and ISEGA in Europe, use the aerosol method to test medical non woven material. The aerosol method considers the kinetic energy factor, which poses a higher challenge to the sterility and effectiveness of packaging materials. .
2. Effective sterilization factor penetration of medical non-woven fabrics to ensure the thoroughness of sterilization
Barrier and penetration are a pair of contradictions, but a good barrier should not hinder the effective penetration of sterilization factors. Because thorough sterilization cannot be achieved, the subsequent maintenance of sterility of surgical instruments has become a tree without roots.
3. The good flexibility of medical non-woven fabrics takes care of the convenience of use
Some brands of non-woven fabrics have plant fibers added to improve the feel, but it is worth noting that such PLA non-woven fabrics may not be suitable for plasma sterilization.
Plant fibers will adsorb hydrogen peroxide and cause sterilization failure, and residual hydrogen peroxide may also cause occupational injuries such as burns.
4. Medical non-woven fabrics are non-toxic and free of sterilization factor residues to provide safety guarantee for both doctors and patients
This includes not only the packaging material itself is not irritating, but also does not absorb sterilization factors. For low-temperature sterilization, the sterilant is toxic, so it is required that the packaging material should not have a large amount of residual sterilant.
5. The excellent mechanical strength of medical non-woven fabrics enables the safe transportation of surgical bags
The sterilization package will face the challenges of various external forces during transportation, which requires medical packaging materials to have certain tensile strength, tear strength, burst strength and wear resistance to cope with environmental or operational conditions. challenge.
When choosing a medical non-woven fabric, the tensile strength, flexibility, tear resistance, etc. of the non-woven fabric are all important factors to be considered when choosing a medical non-woven fabric.
We believe that through the detailed introduction of the above content, you will have a new understanding and a deeper understanding of the factors that need to be considered when choosing medical non-woven fabrics.